I think you're confused, when people say "they ask leetcode questions" they don't mean they do automated tests The questions the human is asking you come from

I think you're confused, when people say "they ask leetcode questions" they don't mean they do automated tests The questions the human is asking you come from a big question bank and a lot of it is listed on LeetCode under the meta company tag because people leak them. People use Leetcode to practice for those interviews, they don't use the leetcode site in the interview